基于THUMS模型的人员胸部爆炸冲击波致伤机理  

Research on the Mechanism of Chest Injury Caused by Explosion Shock Waves Based on THUMS Model

作　　者：王泽华 潘腾 刘瀚 周宏元 黄广炎[1,2,3] 张宏 WANG Zehua;PAN Teng;LIU Han;ZHOU Hongyuan;HUANG Guangyan;ZHANG Hong(State Key Laboratory of Explosive Science and Safety Protection,Beijing Institute of Technology,Beijing 100081,China;Chongqing Innovation Center,Beijing Institute of Technology,Chongqing 401120,China;Explosion Protection and Emergency Response Technology Engineering Research Center of Ministry of Education,Beijing Institute of Technology,Beijing 100081,China;Key Laboratory of Urban Safety and Disaster Engineering of Ministry of Education,Beijing University of Technology,Beijing 100124,China)

机构地区：[1]北京理工大学爆炸科学与安全防护全国重点实验室,北京100081 [2]北京理工大学重庆创新中心,重庆401120 [3]北京理工大学爆炸防护与应急处置技术教育部工程研究中心,北京100081 [4]北京工业大学城市安全与灾害工程教育部重点实验室,北京100124

出　　处：《兵工学报》2024年第10期3754-3764,共11页Acta Armamentarii

基　　金：国家自然科学基金面上项目(12372354);国家自然科学基金创新群体项目(12221002)。

摘　　要：为获得爆炸冲击波下人员胸部损伤机理,借助高保真数字假人模型(Total Human Model for Safety,THUMS),使用Load_Blast_Enhanced方法与任意拉格朗日欧拉(Arbitrary Lagrange-Euler,ALE)方法构建了人体-爆炸流场数值模型,对爆炸冲击波下人体胸部的损伤情况开展数值计算,结合爆炸事故验证模型的有效性;基于冲击波峰值超压准则和Axelsson损伤模型判别6个工况下人员伤情等级,发现仅在TNT当量1500 g、爆距4 m时人员有轻伤风险。基于皮肤、骨骼、心肺的动态响应细致分析人员各组织器官的损伤类型,揭示了人员轻伤时的损伤模式及爆炸冲击波的致伤机理,研究结果可为爆炸致伤人员损伤评估的研究及相关防护装备的设计提供参考。In order to obtain the mechanism of chest injury under explosion shock waves,a high fidelity digital dummy model(total human model for safety,THUMS)was used to construct a numerical model of the human-explosion flow field using the Load_Blast_Enhanced method and the arbitrary Lagrange-Euler(ALE)method.The damage to the human chest under explosion shock waves was numerically calculated,and the effectiveness of the proposed model is verified by an explosion accident.Based on the peak overpressure criterion of shock waves and the Axelsson damage model,it was found that personnel injury levels were only at risk of minor injuries when TNT equivalent was 1500 g and explosion distance was 4 m.Based on the dynamic response of skin,bones,heart and lungs,a detailed analysis of the types of injuries to various tissues and organs of personnel was conducted,revealing the injury patterns and mechanisms of explosion shock waves during minor injuries.The research results can provide reference for the assessment of injuries caused by explosions and the design of related protective equipment.

关 键 词：THUMS模型 爆炸冲击波 致伤机理 人体数值模拟 

分 类 号：O389[理学—流体力学]